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02dc8d63 TS |
1 | /* |
2 | This file is provided under a dual BSD/GPLv2 license. When using or | |
3 | redistributing this file, you may do so under either license. | |
4 | ||
5 | GPL LICENSE SUMMARY | |
6 | Copyright(c) 2015 Intel Corporation. | |
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of version 2 of the GNU General Public License as | |
9 | published by the Free Software Foundation. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | General Public License for more details. | |
15 | ||
16 | Contact Information: | |
17 | qat-linux@intel.com | |
18 | ||
19 | BSD LICENSE | |
20 | Copyright(c) 2015 Intel Corporation. | |
21 | Redistribution and use in source and binary forms, with or without | |
22 | modification, are permitted provided that the following conditions | |
23 | are met: | |
24 | ||
25 | * Redistributions of source code must retain the above copyright | |
26 | notice, this list of conditions and the following disclaimer. | |
27 | * Redistributions in binary form must reproduce the above copyright | |
28 | notice, this list of conditions and the following disclaimer in | |
29 | the documentation and/or other materials provided with the | |
30 | distribution. | |
31 | * Neither the name of Intel Corporation nor the names of its | |
32 | contributors may be used to endorse or promote products derived | |
33 | from this software without specific prior written permission. | |
34 | ||
35 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
36 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
37 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
38 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
39 | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
40 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
41 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
42 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
43 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
44 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
45 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
46 | */ | |
47 | #include "adf_accel_devices.h" | |
48 | #include "adf_common_drv.h" | |
49 | #include "adf_pf2vf_msg.h" | |
50 | ||
51 | /** | |
52 | * adf_vf2pf_init() - send init msg to PF | |
53 | * @accel_dev: Pointer to acceleration VF device. | |
54 | * | |
55 | * Function sends an init messge from the VF to a PF | |
56 | * | |
57 | * Return: 0 on success, error code otherwise. | |
58 | */ | |
59 | int adf_vf2pf_init(struct adf_accel_dev *accel_dev) | |
60 | { | |
61 | u32 msg = (ADF_VF2PF_MSGORIGIN_SYSTEM | | |
62 | (ADF_VF2PF_MSGTYPE_INIT << ADF_VF2PF_MSGTYPE_SHIFT)); | |
63 | ||
64 | if (adf_iov_putmsg(accel_dev, msg, 0)) { | |
65 | dev_err(&GET_DEV(accel_dev), | |
66 | "Failed to send Init event to PF\n"); | |
67 | return -EFAULT; | |
68 | } | |
25c6ffb2 | 69 | set_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status); |
02dc8d63 TS |
70 | return 0; |
71 | } | |
72 | EXPORT_SYMBOL_GPL(adf_vf2pf_init); | |
73 | ||
74 | /** | |
75 | * adf_vf2pf_shutdown() - send shutdown msg to PF | |
76 | * @accel_dev: Pointer to acceleration VF device. | |
77 | * | |
78 | * Function sends a shutdown messge from the VF to a PF | |
79 | * | |
80 | * Return: void | |
81 | */ | |
82 | void adf_vf2pf_shutdown(struct adf_accel_dev *accel_dev) | |
83 | { | |
84 | u32 msg = (ADF_VF2PF_MSGORIGIN_SYSTEM | | |
85 | (ADF_VF2PF_MSGTYPE_SHUTDOWN << ADF_VF2PF_MSGTYPE_SHIFT)); | |
86 | ||
25c6ffb2 TS |
87 | if (test_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status)) |
88 | if (adf_iov_putmsg(accel_dev, msg, 0)) | |
89 | dev_err(&GET_DEV(accel_dev), | |
90 | "Failed to send Shutdown event to PF\n"); | |
02dc8d63 TS |
91 | } |
92 | EXPORT_SYMBOL_GPL(adf_vf2pf_shutdown); |